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interference News
Mathematical Approach Deciphers Orbital Angular Momentum Information
GUANGZHOU, China, Aug. 14, 2023 — Researchers from Sun Yat-sen University and École Polytechnique Fédérale de Lausanne (EPFL) have made progress in the use of interferometry to decipher orbital angular momentum (OAM) spectrum information. Lightwaves with OAM have become important in technologies including communication, imaging, and quantum information processing. For these to be effective, it’s crucial to know the exact structure of these helical light beams. So far, this has proven difficult.
Scientists Develop Nano-sized N-Slit Quantum Interferometers
ROCHESTER, N.Y., May 29, 2023 — Researchers led by physicist F.J. “Frank” Duarte — credited with the 1993 invention of the N-slit laser interferometer — have designed practical N-slit quantum interferometers in the nanometer domain. The work, which the...
Modeling Microsphere Effects on Interferometric Resolution
KASSEL, Germany, Nov. 10, 2022 — Though microspheres — microscale spherical particles that can be manufactured from natural and synthetic materials — are known to improve lateral resolution and enhance magnification in microscopic imaging, a generally accepted...
SCANLAB, TU Dresden Develop Polygon Scanner Under LAMpAS Project
PUCHHEIM, Germany, Oct. 17, 2022 — Collaborators SCANLAB and the Technische Universität Dresden (TU Dresden) reported their design of a high-speed speed polygon scanner unit that produces periodic surface patterns by using the principle of interference. The device was completed...
Optical Fiber Throughput Boosted Tenfold
LAUSANNE, Switzerland, Dec. 5, 2013 — A simple, innovative solution reduces the amount of space required between the pulses of light that transport data through an optical fiber, dramatically increasing their capacity. Optical fiber can carry data as light pulses over thousands of miles...
Microphone listens with light
OSLO, Norway – Listening to a conference call can leave you on the edge of your seat, craning to hear what the person on the other end of the call is trying to say. But a new sensor developed in Norway could change all that, giving microphones hyperacute hearing...
Optical microphone listens with light
OSLO, Norway – A nearly 1-mm-thick optical sensor that measures minute movements and extremely quiet sounds could improve the sensitivity of microphones and give them a sense of direction. The technology could enable microphones to “see where the sound comes...
Microphone Listens with Light
OSLO, Norway, June 18, 2013 — Listening to a conference call can leave you on the edge of your seat craning to hear what the person on the other end of the call is trying to say. But, a new sensor developed in Norway could change all that, giving microphones hyper-acute hearing...
Spectroscopy method could lead to better optical devices
PROVIDENCE, R.I. – A new spectroscopy method takes advantage of a fundamental property of thin films – interference – and could help optical devices like LEDs and solar cells make better use of these materials. The technique, called energy-momentum...
Spectroscopy Method Could Lead to Better Optical Devices
PROVIDENCE, R.I., March 6, 2013 — A new spectroscopy method that takes advantage of a fundamental property of thin films — interference — could help make better use of these materials in optical devices like LEDs and solar cells.
FluxData Camera Heads to Space
ROCHESTER, N.Y., Feb. 3, 2011 — On Jan. 22, 2011, a multispectral imager built by FluxData Inc. was launched into space aboard the Japanese HTV-2 mission heading to the International Space Station (ISS). In the upcoming months after arrival, the imager, a key component of the...
Keithley Offers Webinar on Measuring Electrical Resistivity
CLEVELAND, Nov. 16, 2010 — Keithley Instruments, which specializes in advanced electrical test instruments and systems, will broadcast a free web-based seminar titled “How to Make Electrical Resistivity Measurements of Bulk Materials: Conductors, Insulators, and...
Fiber Optic Fence Performance Impresses
MOUNTAIN VIEW, Calif., Sept. 16, 2010 — In mid 2009, a fiber optic intrusion detection system was installed on McAllen-Miller International Airport's perimeter fence in McAllen, Texas. The system, known as Secure Fence, was developed by Future Fibre Technologies. The airport's security...
Device Improves Global Data Transmission
SOUTHAMPTON, England, Sept. 9, 2010 — Researchers have developed a new data transmission system that could substantially improve the transmission capacity and energy efficiency of the world's optical communication networks. Working on the European Union-funded Framework Program 7...
Creating Art with Light
Jun 7, 2010 — A workhorse of industry and research, lasers also have a home in the arts. On stage, they’ve danced with performers. In museums, they’ve been behind almost magical portraits. For artists, this new tool has allowed them to do new things....
Butterfly wings could lead to new optics
MADRID, Spain, and UNIVERSITY PARK, Pa. – New optical technologies are taking flight, thanks to a technique that can replicate butterfly wings. The manner in which these wings are formed, and their properties of luminosity, could help researchers develop light-emitting devices with enhanced...
'Squeezed Light' Record Set
HANOVER, Germany, Jan. 29, 2008 -- An extremely high-quality green laser beam has allowed a record number of photons to be placed in a specific order for use in gravitational wave detectors. Ordering the photons reduced fluctuations in the intensity of the light by 90 percent. This...
Thin, Colorful Carbon Films
Sep 1, 2007 — A research group comprising members from Tohoku University in Sendai, Japan, and from Peking University has found that when a thin anodic aluminum oxide (AAO) film on an aluminum substrate is coated uniformly with carbon, the result is an...
Omega Optical: Manufacturing ‘Green’ Optical Filters
BRATTLEBORO, Vt., Dec. 29, 2006 -- Since 1969, Omega Optical has built its technical reputation on defining the state-of-the-art for optical interference filter performance, manufacturing optical filters for scientists and instrument manufacturers worldwide. From biotech to...
'Tornadoes' Transferred From Light to Sodium Atoms
GAITHERSBURG, Md., Nov. 10, 2006 -- For the first time, tornado-like rotational motions have been transferred from laser light to atoms in a controlled way. The new quantum physics technique can be used to manipulate a state of matter called Bose-Einstein condensate (BEC) and possibly...
Condensates Coaxed to Exhibit Unique Interference
May 1, 2005 — Thomas Young's classic setup for the demonstration of interference features light from one source incident on two vertical slits because the phenomenon occurs only if the light from the slits has a well-defined relative phase. Now a group at the...
(21 results found)
May 2024
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